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Add 15/10 and 20/90

1st number: 1 5/10, 2nd number: 20/90

15/10 + 20/90 is 31/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    15/10 = 15 × 9/10 × 9 = 135/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    20/90 = 20 × 1/90 × 1 = 20/90
  4. Add the two fractions:
    135/90 + 20/90 = 135 + 20/90 = 155/90
  5. After reducing the fraction, the answer is 31/18
  6. In mixed form: 113/18

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